Pressure-controlling valve.



UNITED STATES PATENT OFFICE.

CHARLES E. SEMPLE, JR., OF YOUNGESTOVVN,Y OHIO, `ASSIGrNOR OF ONE- HALFTO CHARLES E. SEMPLE, SR., OF YOUNGSTOVVN, OHIO.

PRESSURE-CONTROLLING VALVE.

Specification of Letters Patent.

Patented Dec. 11, 1906.

Application filed May 18, 1906. Serial No. 317.604.

.To all whowt it may concern.-

Beit known that I, CHARLES E. SEMPLE, Jr., a citizen of the UnitedStates, residing at Youngstown, in the county of Mahoning and State ofOhio, have invented certain new and useful lm rovements inPressure-Controlled Valves, o which the following is a specification.

This invention relates to that type of valves which are semi-automaticin their action under the influence of the steam or other pressure inconnection with which they ar employed.

To this end the invention contemplates a simple, practical, andeffective construction of a pressure-controlled valve capable of generalapplication to Huid-pressure systems, though possessing special utilityin combination with steam-traps designed to collect and dispose ofcondensation in steam-pipes.

With these and other objects in view, which will readily appear to thoseskilled in the art as the nature of the invention is better understood,the same consists in the novel construction, combination, andarrangement of parts hereinafter more fully described, illustrated, andclaimed.

The essential features of the invention involved in the mounting of themain cut-off and relief valves and the relative positions and movementsof these valves in'connection with the fluid circulation are necessarilysusceptible to structural change Without departing from the scope of theinvention 3 but preferred embodiments thereof are shown in theaccompanying drawings, in which- Figure 1 is a vertical longitudinalsectional view of a pressure-controlled valve embodying thepresentinvention and shown closed. Fig. 2 is a sectional view showing amodified arrangement for circulating the fluid (Whatever it may be) intoand out of the pressurechamber behind or beyond the valve-plunger. Fig.3 is a vertical sectional view showing the relation of the main cut-offvalve and relief-valve when open.

Like references designate corresponding parts in the several figures ofthe drawings.

The invention embodies in its general organization a valve-body,(designated in the drawings by the numeral 1 which valve-body is of thegeneral conventional form and is provided therein with a valve-seatpartition 2, which separates the inlet-chamber 3 from the outlet-chamber4, said inlet-chamber being in communication with the inlet-neck 5 andthe outlet-chamber 4 being in .communication with the outlet-neck 6, towhich necks is coupled the line of piping with which thel valve 1sassociated.

A distinctive feature of the present invention resides in equipping thevalve-body 1 with a pressure-cylinder 7, lrigidly connected with thebody. This connection may be effected in different Ways; but apreferable construction is shown in the drawings and consists inproviding the 'cylinder 7 at one end' with a threaded neck 8, secured inthe internally-threaded coupling-collar 9, projected from one side ofthe valve-body in the longitudinal plane of the cylinder and in thetransverse lane of the valve-seat opening in the partition 2 of thevalve-body.

The valve-seat opening in the partition 2 has removably screwed thereina flanged valve-seat bushing 10, provided at one corner thereof with abeveled valve-seat 11,

against which contacts the complementalV beveled faceV of the maincut-0E valve 12. The main cut-0E valve 12 is designed to close theori'lice through the bushing and is preferably in the form of a ringplaced around the inner contracted valve-head portion 13 of the pplunger 14. The said valve-head portion 13 of the plunger 14 iscontracted, so as to project through the valve-seat orifice or openingof the partition 2, and at its extremity is threaded to accommodatethereon the inter,- nally-threaded binding-nut 15, arranged to hold thevalve or valve-disk 12 in place or to bind the same against the lower orunder end of the plunger 14. The said binding-nut 15 in addition toperforming the function. re-

- ferred to is provided with a plurality of ra- IOO tos

fit on a plurality of guiding-surfaces 22a, provided upon the interiorof the cylinder 7.

In this connection it is preferable to equip the interior of thepressure-cylinder with a stuffing-box comprising a screw-mounted gland23 and packing 24, arranged about the plunger and held in place by thegland. Also the stufhng-box 23 24 carries one of the guidingsurfaces22a, so that the plunger may be effectively and accurately guided inthecylinv der., as may be plainly seen from the figures of the drawings.

Referring again to the structural features of the reciprocal plunger, itis to be noted that the diameter of the main body of the samev issomewhat greater than that of the opening at the upper face of thevalve-seat 11. Alsothis plunger is provided with a plurality ofcirculating-ports 26, piercing the wall thereof above the plane of thevalve 12, thereby providing communication between they inlet-chamber 3and the internal chamber of the hollow valve-plunger 14. Below the planeof said ports 26 the said valve-head portion of the plunger is providedywith an ,internal valve-seat 27, upon which is designed to. be seatedthe interior auxiliary pressure-relief valve 28, carried at the extremelower or inner end of the stem 22.

In the construction shown in Figs. 1 and 3 the said stem 22 carriestherewith in spaced relation to the valve 28 a piston-collar 29, havinga sliding working iit within the bore of the valve-plunger 14 andpierced by a plu- In addition t o the fcollar 29 the operating-stem 22is also provrvided adjacent to the cap 19 with a stop-collar 31 of lessdiameter than the internal bore of the plunger 14 and designed to engageagainst the cap 19 to limit the move- 'ment of the piston-collar 29.

` Referring now to the operation of the construction described, andshown in Figs. 1 and 3 of the drawings, it will be assumed that thevalve as an entirety is closed and the ports in the positions shown inFig. 1, thereby closing communication between the inletchamber 3 and theoutlet-chamber 4. Also assuming that the pressure is on the line off'piping connected with the valve, the iiuid, `whatever it'may be,passes through the cir- 'culating-ports-26 into the interior chamber ofplunger 14 and thence up through ports 2() to the upper pressure-chamber1 8, where it exerts a downward pressure upon the upper or outer end ofthe valve-plunger 14, which serves to hold the main cut-oli valve 12Jrmly to its seat and at the same time exerts a similar pressure uponthe upper face of auxiliary valve 28, thus holding it to its seat also.Vhen it is desired to open the valve, the stem 22 is lifted mechanicallyor manually, thereby simultaneously opening the auxiliary relief-valve28 and moving the piston-collar 29 to a position for closing ports 26.(See Fig. 3.) This cuts oif communication between the inlet-chamber 3and the pressure-chamber 18, while at the same time a pressure-releasecircuit is established from the chamber 18 through ports 20, through thebore of the plunger, and through ports 30 to the outlet-chamber 4. Assoon as the pressure in chamber 18 is released the pressure in theinlet-chamber 3, acting upon the exposed area of the lower or under endof the plunger 14 in chamber 3, serves to lift the main valve 12 fromits seat, thereby opening direct communication between the chambers 3and 4, and hence through the valve-body.

To close the valve, the stem 22 is moved downwardly or inwardly, therebysimultaneously seating the auxiliary valve 28 and uncovering the ports26, whereupon communication is restablished between theinletchamber 3and the pressure-chamber 18. The continued downward or inward movementof ,the stem 22 after the auxiliary valve is seated serves to close themain valve, and this operation is assisted by the accumulating pressurein chamber 18. Then the plunger 14 in its downward course reaches apoint where the pressure in chamber 18 exceeds that in theoutlet-chamber 4, the operation becomes entirely automatic, and thefinal movement of the main valve is eiected by pressure.

A practical embodiment which may be resorted to is shown in Fig. 2.ofthe drawings,

'andconsists in providing the valve-operating stem 22with a hollow ortubular portion 32, having above the plane of an imperforate closing-cap191L for the plunger the reliefports 33 in communication with thechamber 18. Also said stem 22 carries a solid or imperforatepiston-collar 29a and is pierced above and belowthe plane of said collarby separatesets of circulation-holes 34 and 35, respectively. Thesecirculation-holes permit the fluid above the piston-collar 29fL tofreely pass out of the hollow plunger 14 to chamber 4 when said collaris in a closing position with reference to ports 26 in the plunger, thepressure-release circuit being established, when stem 22 is lifted, fromchamber 18 through ports 33, tubular portion 32, and ports 34 and 35 tothe outlet-chamber 4. In

`other.respects the action and operation of IOC IIO

valve-body having It is thought that from the foregoing theconstruction, operation, and many advantages of the herein-describedvalve will be readily apparent Without further description.

I claim- 1. In a valve of the class described, a a xed valve-seat, a5,pressure-cylinder carried by the valve-body and havin apressure-chamber, a reciprocal hollow va ve-plunger within said cylinderand having circulating-ports in direct communication with theinlet-chamber of the valve-body and arranged to admit iuid from the saidinlet-chamber to said pressurechamber, said valve-plunger also carryinga main cut-0E valve, and a mechanically or manually controlled auxiliaryrelief valve device operating Within the hollow plunger and havingseparate means for respectively closing the outlet from thevalve-plunger into the outlet-chamber, and for cutting off thepressure-supply through the circulatingports of the valve-plunger.

2. In a valve of the class described, a valve-body havin a xeclvalve-seat, a pressure-cylinder tted to the valve-body and provided Witha pressure-chamber, a reciprocal hollow valve-plunger movable withinsaid cylinder and arranged to provide communication therethrough betweensaid 4pressure-chamber and the outlet-chamber of the valve-body, saidplunger being further provided with circulatingorts 1n directcommunication with the 1n et-chamber of the valve-body, and a valve-oerating stem carrying an auxiliary relief-va ve seated in the bore ofthe valve-plunger, said stem also carrying a cut-off element for saidcirculating-ports of the valve-plunger. 3. In a valve of the classdescribed, a

[SEAL] valve-body havin a xed valve-seat, a pressure-cylinder tted tothe valve-body and having an interior stuflng-box and a ressure-chamberbeyond the latter, a holow reciprocal valve-plunger carrying a maincut-o valve and providing communication therethrough between saidpressure-chamber and the outlet-chamber of the valvebody, said plungerbeing further rovided With an internal valve-seat, and a ove the planeof the latter with side circulating-ports in direct communication withthe inletchamber of the valve-body, and a suitablyoperated valve-stemcarrying an auxiliary relief-'valve Working on the internal seat of thevalve-plunger, and above said auxiliary valve with a piston-collararranged to cover and uncover said circulating-ports of thevalve-plunger.

4:. valve-body havin a xed valve-seat, a pressure-cylinder tted to thevalve-body and having a pressure-chamber, a reciprocal hollow valve-pluner carrying a main cut-off valve, and being o greater diameter than theseat of said main cut-0E valve, said plunger being further provided Withcirculating-ports In a valve of the class described, a

in communication 'with the inlet-chamber of o 4one of said collarsoperating as a plston cuto for said circulating-ports of thevalveplunger.

In testimony Whereot` I hereunto affix my signature in the resence oftwo Witnesses.

CH R

LES E. SEMPLE, JR. Witnesses:

A. HERB, W. M. OMSLEY.

may conformjto the record of the case in the Patent Oce. I Signed andsealedthis 15th day pi' January, A. D., 1907.

-F. I. ALLEN,

Commissioner` of It is hereby certified that in Letters Patent No.838,466, granted December 11', 1906, l upon tho application of cha'rlosE. somplo, irl-,of voiio'gstown, ohio, `tho tino of ono invention waserroneously written and printed on the face of the `patent and` in theheading to thel specification and drawings as Pressure-ControllingValves,v whereas the said title should have been written and printedPreasure- Control-led Valves; and that the said Letters Patent should beread with this correction therein Athat the same I valve-body having Itis thought that from the foregoing the construction, operation, and manyadvantages of the herein-described valve will be readily apparentWithout further description.

I claim- 1. In a valve of the class described, a a xed valve-seat, a5,pressure-cylinder carried by the valve-body and havin apressure-chamber, a reciprocal hollow va ve-plunger within said cylinderand having circulating-ports in direct communication with theinlet-chamber of the valve-body and arranged to admit iuid from the saidinlet-chamber to said pressurechamber, said valve-plunger also carryinga main cut-0E valve, and a mechanically or manually controlled auxiliaryrelief valve device operating Within the hollow plunger and havingseparate means for respectively closing the outlet from thevalve-plunger into the outlet-chamber, and for cutting off thepressure-supply through the circulatingports of the valve-plunger.

2. In a valve of the class described, a valve-body havin a xeclvalve-seat, a pressure-cylinder tted to the valve-body and provided Witha pressure-chamber, a reciprocal hollow valve-plunger movable withinsaid cylinder and arranged to provide communication therethrough betweensaid 4pressure-chamber and the outlet-chamber of the valve-body, saidplunger being further provided with circulatingorts 1n directcommunication with the 1n et-chamber of the valve-body, and a valve-oerating stem carrying an auxiliary relief-va ve seated in the bore ofthe valve-plunger, said stem also carrying a cut-off element for saidcirculating-ports of the valve-plunger. 3. In a valve of the classdescribed, a

[SEAL] valve-body havin a xed valve-seat, a pressure-cylinder tted tothe valve-body and having an interior stuflng-box and a ressure-chamberbeyond the latter, a holow reciprocal valve-plunger carrying a maincut-o valve and providing communication therethrough between saidpressure-chamber and the outlet-chamber of the valvebody, said plungerbeing further rovided With an internal valve-seat, and a ove the planeof the latter with side circulating-ports in direct communication withthe inletchamber of the valve-body, and a suitablyoperated valve-stemcarrying an auxiliary relief-'valve Working on the internal seat of thevalve-plunger, and above said auxiliary valve with a piston-collararranged to cover and uncover said circulating-ports of thevalve-plunger.

4:. valve-body havin a xed valve-seat, a pressure-cylinder tted to thevalve-body and having a pressure-chamber, a reciprocal hollow valve-pluner carrying a main cut-off valve, and being o greater diameter than theseat of said main cut-0E valve, said plunger being further provided Withcirculating-ports In a valve of the class described, a

in communication 'with the inlet-chamber of o 4one of said collarsoperating as a plston cuto for said circulating-ports of thevalveplunger.

In testimony Whereot` I hereunto affix my signature in the resence oftwo Witnesses.

CH R

LES E. SEMPLE, JR. Witnesses:

A. HERB, W. M. OMSLEY.

may conformjto the record of the case in the Patent Oce. I Signed andsealedthis 15th day pi' January, A. D., 1907.

-F. I. ALLEN,

Commissioner` of It is hereby certified that in Letters Patent No.838,466, granted December 11', 1906, l upon tho application of cha'rlosE. somplo, irl-,of voiio'gstown, ohio, `tho tino of ono invention waserroneously written and printed on the face of the `patent and` in theheading to thel specification and drawings as Pressure-ControllingValves,v whereas the said title should have been written and printedPreasure- Control-led Valves; and that the said Letters Patent should beread with this correction therein Athat the same I It is herebycertified that in Letters Patent No. 838,466, granted December 11, 1906,upon the application of Charles E. Semple, Jr., 0f Youngstown, Ohio7 thetitle of the invention was erroneously Written and printed on the faceof the patent and in the heading to the specification and drawings asPressnre-Contro11ing Valves, whereas the said title should have beenwritten and printed Pressure-('ontmlled Valves; and that 1 the saidLetters Yatent should be read with this correction therein that the samemay conform to the record of the ease in the Patent Ofiee.

Correction in Letters Patent No. 838,466.

Signed and sealed this 15th day of January, A. D., 1907.

[SEAL] F. I. ALLEN,

JM Commissioner of Patents.

GLA/ M (3.

